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Thru-Hull, Drain Tube & Scuppers

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Groco 3/4"" Xtra-Long T-Hull With Nut - THXL-750-W
$39.00 $36.99
For installations where hull thickness dictates the use of longer fitting. MFG# THXL-750-W THXL750W UPC# 742985141742 MFG# THXL-750-W THXL750W UPC# 742985141742
188 item(s)
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Gross Mechanical Labs Groco 1 Thru-Hull With Nut TH-1000-W
$39.99 $33.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-1000-W TH1000W UPC# 742985064119
258 item(s)
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Gross Mechanical Labs Groco 1" Xtra-Long T-Hull With Nut Thxl-1000-W
$50.00 $43.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-1000-W THXL1000W UPC# 742985141759
61 item(s)
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Gross Mechanical Labs Groco 1-1/2 Thru-Hull With Nut TH-1500-W
$71.00 $61.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-1500-W TH1500W UPC# 742985064133
246 item(s)
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Gross Mechanical Labs Groco 1-1/2" Xtra-Long T-Hull With/Nut THXL-1500-W
$86.00 $73.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-1500-W THXL1500W UPC# 742985141773
61 item(s)
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Gross Mechanical Labs Groco 1-1/4 Thru-Hull With Nut TH-1250-W
$55.00 $47.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-1250-W TH1250W UPC# 742985064126
274 item(s)
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Gross Mechanical Labs Groco 1-1/4" Xtra-Long T-Hull With/Nut Thxl-1250-W
$80.00 $68.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-1250-W THXL1250W UPC# 742985141766
48 item(s)
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Gross Mechanical Labs Groco 1/2 Thru-Hull With Nut TH-500-W
$31.75 $26.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-500-W TH500W UPC# 742985064096
243 item(s)
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Gross Mechanical Labs Groco 2 Thru-Hull With Nut TH-2000-W
$106.00 $91.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-2000-W TH2000W UPC# 742985005174
126 item(s)
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Gross Mechanical Labs Groco 2" Xtra-Long T-Hull With Nut THXL-2000-W
$119.00 $102.99
For installations where hull thickness dictates the use of longer fitting. Locknut has bonding connection. MFG# THXL-2000-W THXL2000W UPC# 742985141780
30 item(s)
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Gross Mechanical Labs Groco 2-1/2 Thru-Hull With Nut TH-2500-W
$209.00 $166.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-2500-W TH2500W UPC# 742985064157
83 item(s)
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Gross Mechanical Labs Groco 3/4 Thru-Hull With Nut TH-750-W
$31.75 $26.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Has locknut with bonding screw. Comes with nut. MFG# TH-750-W TH750W UPC# 742985064102
665 item(s)
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Gross Mechanical Labs Groco Drain Wingut With/ O-Ring ARG506
$19.99 $16.99
Service kits for ARG strainers. Contain cap O-ring, sight glass O-ring, washer and drain wingnut gasket. MFG# ARG506 UPC# 742985008878
74 item(s)
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Gross Mechanical Labs Groco High Speed 3/4"" T-Hull With/Nut HSTH-750-W
$29.40 $24.99
Provides low pressure, low profile flow into plumbing system. Includes locknut. MFG# HSTH-750-W HSTH750W UPC# 742985141728
161 item(s)
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Gross Mechanical Labs Groco TH Bronze Standard Length Thru-Hull With Nut, NPS Thread ...
$299.00 $238.99
Should have threaded portion cut to proper length considering hull and butt block thickness. Consider thread depth when using a seacock. Sealant is recommended between hull and thru-hull flange. Includes nut. NOT TO BE USED IN POTABLE WATER SYSTEMS. MFG# TH-3000-W TH3000W UPC# 742985064164 MFG# TH-3000-W...
43 item(s)
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Gross Mechanical Labs Groco Thru Hull Flush With/Nut 3/4 FTH750W
$23.00 $21.99
Has locknut with bonding screw. Comes with nut. Bronze. MFG# FTH750W UPC# 742985002609
55 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1-1/2 SS HTH1500S
$84.00 $73.99
Includes locknut. Stainless Steel. MFG# HTH1500S UPC# 742985139015
194 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1-1/4 SS HTH1250S
$69.00 $60.99
Includes locknut. Stainless Steel. MFG# HTH1250S UPC# 742985139008
54 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1-1/8 SS HTH1125S
$42.00 $39.99
Includes locknut. Stainless Steel. MFG# HTH1125S UPC# 742985138995
212 item(s)
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Gross Mechanical Labs Groco Thru-Hull 1/2 SS HTH500S
$39.00 $36.99
Includes locknut. Stainless Steel. MFG# HTH500S UPC# 742985142121
94 item(s)
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Gross Mechanical Labs Groco Thru-Hull 2 SS HTH2000S
$104.00 $89.99
Includes locknut. Stainless Steel. MFG# HTH2000S UPC# 742985139022
84 item(s)
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Gross Mechanical Labs Groco Thru-Hull 3/4 SS HTH750S
$41.16 $34.99
Includes locknut. Stainless Steel. MFG# HTH750S UPC# 742985138988
210 item(s)
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Th Marine 1-1/2 X-Long Thru Hull-White TH1502XLB
$27.05 $22.99
White. MFG# TH1502XLB UPC# 733572031164
64 item(s)
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Th Marine 90Deg Thru-Hull F/Hose 1-1/2 TH1592B
$31.75 $26.99
High quality UV and chemical resistant virgin polypropelene. Features a finished head and a single pass around nut. MFG# TH1592B UPC# 733572031317
68 item(s)
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